BMAT考试：科学知识与应用练习（16）

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BMAT考试：科学知识与应用练习

Three classes in a school all took the same test.Class 1 achieved a mean score of 61, Class 2 achieved a mean score of 63, andclass 3 achieved a mean score of 70. The mean score of the students for allthree classes combined was 65. Class 1 contains twice as many students as Class2.

Which one of the following statements about thenumber of students in class 3 is true?

A Class 3 contains fewer students than Class 2.

B Class 3 contains the same number of students asClass 2.

C Class 3 contains more students than Class 2, butfewer than Class 1.

D Class 3 contains the same number of students asClass 1.

E Class 3 contains more students than Class 1.

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